Army needs for armored humvees and retro kits is underfunded to currently stated need by about $600 million ($400 MM new vehicles and $200 MM kits).
If someone gets a link to the actual study or consultant please post it and ping me.
Of curious note is the low (single digits) of effective and operational M1A1 tanks. I think there were 125 total in Iraq at present, but to see such a low number actually in working order is disturbing.